I have FS9.1 (Microsoft update) on my system. The no-CD fix I have must be a no-CD exe for FS9.0. I am currently having problems utilising all Active Camera 2004 functions. I was told that the FS update modified some memory offsets and pointer variables. Active Camera checks for data in the FS9.exe, which is not the same with the no-CD exe.

If I revert to the origional updated FS9.exe, the AC 2004 programs will work.

If you've got the FS9.1 update then simply reinstall it to replace the FS9.exe.

Now that I look at his first message again, I think he wants to revert to 9.0 from 9.1, and there's an uninstall function in the 9.1 patch to do that. Also 444Pilot, the 9.1 update automatically backs up your original fs9.exe to a file named FS9.A405.EXE in <fs9>\BACKUP. You should use the uninstall program to revert though.